What is the upgrade plan to follow to do an upgrade of Client Automation ? (Enterprise, Domains, Scalability Servers, Agents).
All Environment
Verify the Prerequisites for the new version into the documentation
Example for version 14.5 : Release Information 14.5
For Enterprise and Domain Manager upgrade do a backup of mdb database and files and registry
If you have ENC components installed in the system, upgrade in the following hierarchical order before upgrading Enterprise Manager:
ENC Gateway Manager
ENC Gateway Server
ENC Gateway (Router)
See this documentation for details : Upgrade Process